제조사
![ICST](/logo/ICST.png)
Integrated Circuit Systems
![ICST](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
General Description
The ICS9248-78 is a single chip clock for Intel Pentium II. It provides all necessary clock signals for such a system.
FEATUREs
• Generates the following system clocks:
- 2 - CPUs @ 2.5V, up to 150MHz.
- 1 - IOAPIC @ 2.5V, PCI/2MHz.
- 9 SDRAMs (3.3V), up to150MHz.
- 2 - 3V66 @ 3.3V, 2x PCIMHz.
- 8 - PCIs @ 3.3V.
- 1 - 48MHz, @ 3.3V fixed.
- 2 - REF @ 3.3V, 14.318Hz.
- 1 - 24MHz, @ 3.3V fixed.
• Supports spread spectrum modulation , down spread 0 to -0.5%, –0.25% center spread.
• I2C support for power management.
• Efficient power management scheme through PD#.
• Uses external 14.138 MHz crystal.
Frequency Timing Generator for Pentium II Systems
Integrated Circuit Systems
Frequency Timing Generator for Pentium II Systems
Integrated Circuit Systems
Frequency Timing Generator for Pentium II Systems
Integrated Circuit Systems
Frequency Timing Generator for PENTIUM II Systems
Integrated Circuit Systems
Frequency Timing Generator for PENTIUM II Systems
Integrated Circuit Systems
Frequency Timing Generator for Pentium II Systems
Integrated Circuit Systems
Frequency Timing Generator for Pentium II Systems
Integrated Circuit Systems
Frequency Timing Generator for Pentium II Systems
Integrated Circuit Systems
Frequency Timing Generator for PENTIUM II Systems
Integrated Circuit Systems
Frequency Timing Generator for PENTIUM II Systems
Integrated Circuit Systems